MFS1/4DCT52R1001F Equivalent & Substitute Parts

Part Overview

The MFS1/4DCT52R1001F is a 1 kOhms ±1% 0.25W through-hole resistor manufactured by KOA Speer Electronics, Inc. This metal film axial resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with 6068 units available in inventory. Substitute parts are identified to provide design flexibility, supply chain alternatives, and packaging options while maintaining electrical and mechanical compatibility.

Substiute Parts

MFS1/4DCT52R1001F

KOA Speer Electronics, Inc.In Stock: 6161MFS1/4DCT52R1001F Datasheet

Current PartRFQ

MFR-25FBF52-1K

YAGEOIn Stock: 66441MFR-25FBF52-1K Datasheet

SimilarRFQ

MFR-25FRF52-1K

YAGEOIn Stock: 120235MFR-25FRF52-1K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MFS1/4DCT52R1001F are qualified based on the following electrical and mechanical parameters:

• Resistance value: 1 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W, 1/4W (exact match required)
• Composition: Metal Film (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The identified substitutes are YAGEO MFR series resistors that meet all electrical specifications. Physical dimensions vary between the main part and substitutes; however, both maintain axial package compatibility for through-hole PCB applications. Packaging format (Cut Tape vs. Bulk) differs between options to accommodate various procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and meet ROHS3 compliance requirements. The MFS1/4DCT52R1001F from KOA Speer Electronics includes automotive AEC-Q200 qualification, which is a critical specification for automotive applications. The YAGEO MFR-25FRF52-1K and MFR-25FBF52-1K substitutes do not list automotive qualification features in the provided specifications.

For applications requiring automotive-grade components with AEC-Q200 certification, the MFS1/4DCT52R1001F remains the specified choice. For general-purpose applications where automotive qualification is not required, the YAGEO MFR series provides electrical equivalence with alternative packaging options. The MFR-25FRF52-1K is available in Cut Tape format with 120154 units in stock, while the MFR-25FBF52-1K is available in Bulk format with 66339 units in stock.

Physical dimension differences exist between the KOA and YAGEO parts. PCB layout and mechanical clearance must be verified before substitution to ensure proper fit within the intended application.

Frequently Asked Questions (FAQ)

Q: Can MFR-25FRF52-1K or MFR-25FBF52-1K be used as direct replacements for MFS1/4DCT52R1001F?

A: Both YAGEO parts meet the electrical specifications (1 kOhms ±1%, 0.25W, metal film, ±100ppm/°C, -55°C to 155°C operating range, ROHS3 compliant). However, the MFS1/4DCT52R1001F includes AEC-Q200 automotive qualification, which the YAGEO parts do not specify. For automotive applications requiring AEC-Q200 certification, the KOA part is required. For non-automotive applications, the YAGEO parts are electrically equivalent. Physical dimensions differ; verify PCB layout compatibility.

Q: What is the difference between MFR-25FRF52-1K and MFR-25FBF52-1K?

A: Both parts are electrically and mechanically identical. The primary difference is packaging format: MFR-25FRF52-1K is supplied in Cut Tape (CT) format with 120154 units available, while MFR-25FBF52-1K is supplied in Bulk format with 66339 units available. Selection depends on assembly process requirements and procurement volume.

Q: Are there physical dimension constraints when substituting these parts?

A: Yes. The MFS1/4DCT52R1001F measures 0.067" diameter x 0.126" length (1.70mm x 3.20mm), while both YAGEO MFR parts measure 0.094" diameter x 0.248" length (2.40mm x 6.30mm). PCB layout, component spacing, and mechanical clearance must be verified to ensure the larger YAGEO parts fit within the intended design.

Q: Do all parts meet environmental and compliance standards?

A: All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8533.21.0090. The MFS1/4DCT52R1001F additionally meets AEC-Q200 automotive qualification standards.